[PATCHv2] Handle not explicitly zero terminated strings in merge sections

[Jakub Jelinek]

On Fri, Sep 14, 2018 at 06:39:38PM +0000, Bernd Edlinger wrote:
> Hi,
> 
> this is an upate of the string-merge section, it is based on the V2-STRING_CST
> semantic patch series, which was finally installed yesterday.
> It merges single-byte string constants with or without terminating NUL.
> The patch has the same Ada and C test cases that were already in the V1 patch.
> 
> Thus there are no pre-requisite patches necessary at this time.
> 
> Bootstrapped and reg-tested on x86_64-pc-linux-gnu.
> Is it OK for trunk?

I believe SHF_MERGE | SHF_STRINGS sections should only ever contain
zero-terminated strings.
See e.g. SCO ELF documentation:
"The size of each element is specified in the section header's sh_entsize field. If the SHF_STRINGS flag is also set, the data elements consist of null-terminated character strings."
http://www.sco.com/developers/gabi/2003-12-17/ch4.sheader.html
https://docs.oracle.com/cd/E23824_01/html/819-0690/ggdlu.html

So, please never put non-zero terminated strings into MS sections.

	Jakub